Monthly outlook for Monte Grande, PR: average high 86°, average low 77.7°. That is 0° below the climate normal for October. Precipitation is expected on 11 days (about 1.8 inches), against a normal of 10 days and 2.2 inches. The warmest day looks like 9 October (89.3°), the coolest 11 October (72.8°).
86°/77.7°
Average high / low
−0°
Below normal
11 / 10
Wet days / normal
1.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 October – 18 October
86.2°
86.1°
+0°
19 October – 28 October
85.5°
85.6°
-0.1°
29 October – 7 November
at normal
85.2°
—
October records over 66 years
95.5°12 October 2024All-time high
71.2°4 October 2025All-time low
Climate normals and records are computed from the nearest reference point — Betances (4 mi).
Sat, 1088° / 75°0.34
88 °
Monte Grande, Saturday, 10 October
Rain. High 88°, low 75°.
Pressure30.00 inHg
Wind10.5 mph W
Humidity84%
Visibility2.3 mi
Dew point74°
Sun, 1187° / 73°0.06
87 °
Monte Grande, Sunday, 11 October
Light rain. High 87°, low 73°.
Pressure29.97 inHg
Wind8.5 mph SE
Humidity65%
Visibility6.2 mi
Dew point73°
Mon, 1285° / 79°0.04
85 °
Monte Grande, Monday, 12 October
Light rain. High 85°, low 79°.
Pressure29.94 inHg
Wind1 mph W
Humidity67%
Visibility6.2 mi
Dew point73°
Tue, 1384° / 79°0.23
84 °
Monte Grande, Tuesday, 13 October
Rain. High 84°, low 79°.
Pressure29.91 inHg
Wind6.4 mph NW
Humidity76%
Visibility3.9 mi
Dew point75°
Wed, 1485° / 78°0.04
85 °
Monte Grande, Wednesday, 14 October
Light rain. High 85°, low 78°.
Pressure29.94 inHg
Wind11.5 mph W
Humidity78%
Visibility—
Dew point74°
Thu, 1587° / 80°0.08
87 °
Monte Grande, Thursday, 15 October
Light rain. High 87°, low 80°.
Pressure29.94 inHg
Wind6.6 mph NE
Humidity71%
Visibility—
Dew point72°
Fri, 1686° / 78°0.04
86 °
Monte Grande, Friday, 16 October
Light rain. High 86°, low 78°.
Pressure29.94 inHg
Wind6.8 mph S
Humidity58%
Visibility—
Dew point69°
Sat, 1786° / 79°0.19
86 °
Monte Grande, Saturday, 17 October
Light rain. High 86°, low 79°.
Pressure29.88 inHg
Wind9.6 mph SW
Humidity65%
Visibility—
Dew point71°
Sun, 1884° / 78°0.26
84 °
Monte Grande, Sunday, 18 October
Light rain. High 84°, low 78°.
Pressure29.88 inHg
Wind7.4 mph S
Humidity68%
Visibility—
Dew point72°
Mon, 1985° / 78°0.24
85 °
Monte Grande, Monday, 19 October
Light rain. High 85°, low 78°.
Pressure29.94 inHg
Wind7.4 mph E
Humidity66%
Visibility—
Dew point71°
Tue, 2086° / 78°0.03
86 °
Monte Grande, Tuesday, 20 October
Light rain. High 86°, low 78°.
Pressure30.00 inHg
Wind8.5 mph SE
Humidity66%
Visibility—
Dew point72°
Wed, 2186° / 78°0.04
86 °
Monte Grande, Wednesday, 21 October
Light rain. High 86°, low 78°.
Pressure29.94 inHg
Wind7.9 mph S
Humidity66%
Visibility—
Dew point72°
Thu, 2285° / 77°0.02
85 °
Monte Grande, Thursday, 22 October
Light rain. High 85°, low 77°.
Pressure29.88 inHg
Wind7.4 mph E
Humidity64%
Visibility—
Dew point70°
Fri, 2386° / 78°0.02
86 °
Monte Grande, Friday, 23 October
Light rain. High 86°, low 78°.
Pressure29.88 inHg
Wind14 mph S
Humidity65%
Visibility—
Dew point72°
Sat, 2486° / 77°0
86 °
Monte Grande, Saturday, 24 October
Clear. High 86°, low 77°.
Pressure29.94 inHg
Wind15 mph S
Humidity66%
Visibility—
Dew point72°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2586° / 76°0.13
86 °
Monte Grande, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high86°
Average low76°
Average precipitation0.13 in
Chance of precipitation57%
Record high92° (2024)
Record low74° (2024)
Mon, 2686° / 77°0.15
86 °
Monte Grande, Monday, 26 October
Climate normal for this date — 60-year average.
Average high86°
Average low77°
Average precipitation0.15 in
Chance of precipitation63%
Record high91° (2024)
Record low73° (1970)
Tue, 2785° / 77°0.17
85 °
Monte Grande, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high85°
Average low77°
Average precipitation0.17 in
Chance of precipitation57%
Record high92° (2024)
Record low73° (1974)
Wed, 2886° / 77°0.15
86 °
Monte Grande, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high86°
Average low77°
Average precipitation0.15 in
Chance of precipitation52%
Record high93° (2024)
Record low73° (2023)
Thu, 2985° / 77°0.13
85 °
Monte Grande, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high85°
Average low77°
Average precipitation0.13 in
Chance of precipitation62%
Record high91° (2025)
Record low73° (2018)
Fri, 3085° / 76°0.15
85 °
Monte Grande, Friday, 30 October
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.15 in
Chance of precipitation65%
Record high92° (2025)
Record low72° (2018)
Sat, 3185° / 76°0.11
85 °
Monte Grande, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.11 in
Chance of precipitation47%
Record high91° (2025)
Record low73° (2019)
Sun, 0185° / 76°0.11
85 °
Monte Grande, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.11 in
Chance of precipitation58%
Record high90° (2010)
Record low72° (2024)
Mon, 0285° / 76°0.12
85 °
Monte Grande, Monday, 2 November
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.12 in
Chance of precipitation50%
Record high90° (2025)
Record low71° (2024)
Tue, 0385° / 76°0.13
85 °
Monte Grande, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.13 in
Chance of precipitation55%
Record high89° (2009)
Record low71° (2017)
Wed, 0485° / 76°0.12
85 °
Monte Grande, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.12 in
Chance of precipitation50%
Record high89° (1982)
Record low70° (2025)
Thu, 0585° / 76°0.13
85 °
Monte Grande, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.13 in
Chance of precipitation47%
Record high90° (2025)
Record low71° (2025)
Fri, 0685° / 76°0.12
85 °
Monte Grande, Friday, 6 November
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.12 in
Chance of precipitation53%
Record high90° (2025)
Record low72° (2018)
Sat, 0785° / 76°0.15
85 °
Monte Grande, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.15 in
Chance of precipitation53%
Record high90° (1993)
Record low72° (1971)
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Monte Grande, PR are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in Monte Grande, PR since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.